diff options
Diffstat (limited to 'gcc/testsuite/gcc.apple/bitreverse-0.c')
| -rw-r--r-- | gcc/testsuite/gcc.apple/bitreverse-0.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.apple/bitreverse-0.c b/gcc/testsuite/gcc.apple/bitreverse-0.c new file mode 100644 index 00000000000..4425dc972fc --- /dev/null +++ b/gcc/testsuite/gcc.apple/bitreverse-0.c @@ -0,0 +1,76 @@ +/* APPLE LOCAL file */ +#include <stdio.h> +#include <string.h> + +/* This tests layout when the pragma is off, as a sanity check. */ +/* { dg-do run { target powerpc*-*-darwin* } } */ + +#pragma reverse_bitfields off +typedef struct +{ + union + { + unsigned int i1; + struct + { + unsigned int b1: 1; + unsigned int b2: 2; + unsigned int b3: 4; + unsigned int b4: 8; + unsigned int b5: 16; + } bits; + } u1; + + union + { + struct + { + unsigned int i2; + unsigned int i3; + } ints; + + struct + { + unsigned int b1: 16; + unsigned int b2: 8; + unsigned int b3: 4; + unsigned int b4: 2; + unsigned int b5: 1; + unsigned int b6: 2; + unsigned int b7: 4; + unsigned int b8: 8; + unsigned int b9: 16; + } bits; + } u2; +} Bitfields; + + +int main() +{ + Bitfields bitfields; + + + memset(&bitfields, 0, sizeof(bitfields)); + + bitfields.u1.bits.b1 = 1; + bitfields.u1.bits.b2 = 1; + bitfields.u1.bits.b3 = 1; + bitfields.u1.bits.b4 = 1; + bitfields.u1.bits.b5 = 1; + + bitfields.u2.bits.b1 = 1; + bitfields.u2.bits.b2 = 1; + bitfields.u2.bits.b3 = 1; + bitfields.u2.bits.b4 = 1; + bitfields.u2.bits.b5 = 1; + bitfields.u2.bits.b6 = 1; + bitfields.u2.bits.b7 = 1; + bitfields.u2.bits.b8 = 1; + bitfields.u2.bits.b9 = 1; + + if (bitfields.u1.i1 != 0xa2020002 + || bitfields.u2.ints.i2 != 0x00010116 + || bitfields.u2.ints.i3 != 0x44040004) + return 42; + return 0; +} |